diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..ba2906d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+main
diff --git a/README.md b/README.md
index a10f077..d7b303d 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,9 @@
-# treasure
+Treasures can be found on a 2D grid. By simulating evolution, a small "turtle" learns the location of the treasures.
+
+To run:
+
+```
+nim --gc:arc -d:release c main
+./main
+```